Globe dial fixture



Patented Nov.' 20, 1 .934

UNITED STATES PATENT OFFICE Y My invention relates to a `globe dialfixture, and

particularly to such a fixture for use oni tool machines and otherinstruments for adjustably supporting work-holders, lay-out plates, etc.It is an object of my invention to provide a globe dial with a topbearing surface and a bearing bolt for permitting quick and accurateexchange of work-holders such as machine plates, vises, tablets andother xtures.

^ The globe-surface is provided with vertical and w horizontal markingssimilar to parallels meridians which markings serve as a dial so thatwork supported by the xture can be easily and quickly adjusted. to anydesired vertical or horizontal angle. I prefer to provide an annularsupporting bearing contacting with an area of the globe surface 15 inwidth; also I prefer to-make this contact It is a .further object of myinvention to provide a clamping member for the globe dial operative toVfasten or release the globe by. only an eighth turn of the clamping nut.A'

It is a further object of my invention to provide [a press piece forlocking the globe in the desired position and a resilient member formaintaining suiiicient pressure on the press piece when unf locked thatthe globe dial will not fall over or out of 4adjustment because of itsown weight.

Other objects and advantages will be apparent from the followingdetailed description taken in conjunction with the accompanying drawing`showing a preferred embodiment of'my invention.

The apparatus according to my invention com- .45 prises a globe dial 1having horizontal and vertical dial markings. The globe dial 1 ismounted ina housing 4 having a substantially cylindrical openingextending upwardly therethrough and terminating in a restricted portionhaving the same radius as the globe, providing a bearing surface forengaging the globe dial. The restricted bearing portion is of suiiicientlength to` cover 15 of thevglobe surface upward equator of the globe.

from the.

The horizontal dial marking begins at a point 15 above the globe centerand coinciding with the upper edge of the bearingr surface. Thesemarkings extend 45 above and below the zero line. f`

The globe 1 is provided with a-bearing bolt 5 adapted to carry suitablextures 6' such as machine plates, vises, jigs, etc. A suitable fasteningynut 7 is provided for securing the xtures 6 `on the bolt 5. 65

The globe 1 is retained in the housing 4 by a pressv piece 2 having anannular bearing surfaceV conforming to the surface of the globe 1.

The press piece 2 andthe globe 1 are retained in the housing 4 by asuitableA closure member 3. V70 v steep pitch so that an eighth tur ofnut 8 will move press piece 2 to or from clamping'position.

Resilient means such as coil springs 9 are e0 provided between the presspiece 2' and closure 3 so that the press piece 2 is constantly engagedwith globe 1.` Preferably, the springs 9 exert suflicient force toprevent the globe from turning of its own weight when the clampingmembers B5 lare in the open position.

-Thebearinginpresspiece2endsinasharpedge which acts to remove allforeign material adhering to the surface of the 'globe 1, thus/ insuringa perfect, accurate seat between the globe 1 and press piece 2. Asuitable groove 10 is provided in the press piece for receiving all dirtremoved by the cleaning edge.

While I have shown and described a specic embodimeiit of my device, itwill be apparent to those skilled in the art that changes andmodiflcations can be made without departing from the true spirit of myinvention.

1. A globe dial ,iixture comprising a holder having a substantiallycylindrical passage therethrough, a restricted portion in said passage,an

annular bearing surface in said restricted portion, a. globe dialreceived in said passage and seating on said annular bearing, apress-piece for pressing said dial against said bearingfan Aannularbearing on said press-piece, a closure for said passage, said closurehaving' an opening 110 a stem onA said press-piece extending throughsaid opening, means for preventing relative rotation between saidclosure and said stem, a member in threaded engagement with said stemfor controlling said press-piece and resilient means for maintainingsaid press-piece in con- 2. A globe dial nxture comprising a basemembet, aglobe dial received in saidbasemember and having a portionextending thereahove, 'an annular bearing cooperating with said globedial, saidbearlngbeingoitoosmall asizetopermit onr said press piece forremoving dirt from lthesurface of the globe cooperatingV with thebearingl in the press piece.

REINHOLD H. SCHULZ.

